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  • The number of 9 digit numbers, that can be formed using all the digits of the number 123412341 so that the even digits occupy only even places, is<div

The number of 9 digit numbers, that can be formed using all the digits of the number 123412341 so
that the even digits occupy only even places, is

Option: 1

60


Option: 2

--


Option: 3

--


Option: 4

--


Answers (1)

best_answer

4 even place can be occupied by 4 even digits

No of always=\frac{4:}{2 ! 2 !}=6

Odd place can be occupied by 5 odd digits

No of always=\frac{5 !}{3 ! 2 !}=10

Total no.         =6 \times 10=60

Posted by

Ritika Jonwal

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